Adaptive FEC based diffserv model for real-time media streaming
WU Yan-jie · Jisuanji gongcheng yu sheji · 2009
Media streaming applications over networks are often disturbed by data packet loss and errors as well as the limited network bandwidth,which degrades the video quality on the receiving side.Based on cross-layer design,an adaptive forward error correction algorithm at the application layer,in the hope that the media could be played on receivers with high quality.On the other hand,a diffserv model used for the data link layer is proposed,so that high-priority data streams(such as media streaming data streams) can be assigned more bandwidth.The simulation results and mathematical analysis demonstrate that the proposed mechanism achieves better quality of media streaming,in terms of playable frame rate,reliability and real-time performance on the receiving side.